Nice. These flyback transformers are used in the production industry of bottle filling. They put the HT onto a copper array on a double sided PCB that is sandwiched between two heat sinks. The heatsinks are grooved so that air passes through the grooves and over the HT on the PCB array. This ionises the air and produces O3, which is Qzone. Ozone being very reactive is apparently good for killing germs. "With 52 percent more oxidizing power than chlorine, ozone will oxidize both organic and inorganic substances; remove unwanted taste, odor and color; and provide effective disinfection." - Spartan water treatment Really the only difference between yours and an Ozone generator is a current ammeter and a pot to adjust the switching so that the amps can be adjusted. I cant remember how much it drew but it was basically always set at max to whatever the Flyback transformer was capable of producing.

@Appregator

5 ай бұрын

I looked back in my notes - it was adjusted to 0.4A max. The machine used a 4~20mA control to adjust it down if required.

My good sir, thank you for your hard work and honesty. Although many may prefer the short and sweet, I truly appreciate you taking the time to explain everything as you have!!! Keep it up! And, thank you once more!

@TheKnurdLab

Жыл бұрын

I'm happy that you liked my work. Thanks for the kind words.

Not boring. Great explanation. Just the right amount of technical talk and layman's examples.

Thank you for posting one of the few if not the only detailed explanation of a high voltage power supply using a flyback transformer. Your excellent "Engineer! Experiment! Educate!" approach inspired me to review the circuit in more detail. As I found, the circuit oscillates not because of primary and secondary winding voltages but because of the current limitations of the transistor. The transistor operation has 3 modes: saturated, active, and off. When the transistor is saturated, Vce is 0 volts, and the voltage across the primary inductor is fixed, equal to the supply. The primary current rises by V = L di/dt. Eventually the rising collector current exceeds the capacity of the transistor to remain saturated. It enters the active mode. Vce increases, forcing the voltage across the primary and the primary current to drop. Magnetic flux drops, secondary current drops, the transistor base current drops, and the transistor turns off. With the transistor off, secondary current flows through diode D1 and resistor R2, and the primary current flows through capacitor C1 and the power supply. The capacitor and inductor resonate for less than a full resonant period until the capacitor has discharged to the extent that Vce has fallen to a level where, with primary and secondary current, Q1 base current again flows, the transistor comes on, first in active mode then in saturation, and the oscillation cycle repeats. I will continue to experiment with the circuit to improve its efficiency and raise the output voltage. Thanks again!

First and foremost: I love your video. It is one of a few that explain the basics not to mention presentation of the waveforms and impact of component level modifications. Keep up the good work man, this is the kind of videos that make YT a better place. Having said that I have a question: is there a way to limit the current consumption on the primary side? I want to build a HV generator for different purposes (electrostatic precipitator). I need output voltages in the range of 10-15kV but no arcs are intended, ever. I understand that the current consumption on the primary side is a function of input voltage and primary circuit's resistance. I also know that transformer's input resistance under load is a complex thing involving coil resistance plus inductive reactance. Now question: is there a way to reduce the current flowing through the primary without impacting the output voltage? An extra resistor in series, somewhere, perhaps? I don't care about the output power, I only care about output voltage. Thanks in advance for any further guidance!

Thank you I am glad I found someone willing to take the extra time. This stuff is fun I am addicted.

@TheKnurdLab

Жыл бұрын

Glad that you found it useful!

This is an excellent explanation of this particular flyback. I've got one I got from somewhere I don't remember anymore and this is one of the few videos actually giving a comprehensive explanation of it. Thanks!

@TheKnurdLab

7 ай бұрын

Thank you!

Impressive presentation and circuit design. Outstanding demonstration. Thank you for sharing such a hard work... 👍❤️

@TheKnurdLab

2 жыл бұрын

Thanks for showing interest. You are welcome.

Thank you my friend. I also new to electronics and this helped.

@TheKnurdLab

10 ай бұрын

Glad it helped

Bro when there is no clear datasheet for 1010A , you designed and publish your own datasheet, that is awesome!

@TheKnurdLab

7 ай бұрын

Yes, it took me a bit of playing around with my multimeter and RLC meter but glad to know you found it helpful. Thank you for the support.

Thanks for the knowledge

Loved your Videos. Highly informative and interesting. Thanks a lot! God bless you!

@TheKnurdLab

Жыл бұрын

I'm happy that you found them useful.

Respekt 4 your work and many thanks...greetz from germany 🙂👍

@TheKnurdLab

2 жыл бұрын

Thank you.🙂

I really enjoyed this tons of info thanks !

@TheKnurdLab

2 жыл бұрын

Happy to know you found it useful.👍

Brilliant

Nice work. You have a lot of knowledge

@TheKnurdLab

Жыл бұрын

Thanks for the kind words. I would come back soon with more such content.

Thanks, liked and subbed :) Are you feeding the transformer pulsed DC (i skipped the circuit part) ?

Excellent video 😍😍😍😍😍😍😍😍😍😍😍😍😍😍😍😍😍Loved it

@TheKnurdLab

2 жыл бұрын

Thank you!

Nice, make a SSTC

Thank-you so much sir for giving costly information

@TheKnurdLab

2 жыл бұрын

You are welcome. Thank you for supporting and showing interest in my content.

@mamjitsao2988

2 жыл бұрын

No thank you so much to you sir for providing provide this practical knolage

@mamjitsao2988

2 жыл бұрын

By the way i am a b-tech student

it was an amazing video, can you also make an video on high voltage high frequency power source in which alone positive terminal can show corona discharge with negative terminal grounded ?

Wonderful and thanks. I want a high volts power supply. Can I buy from you. With an additional control on pulse switching. e.g On for 10-100 ms for every second. I want it to reduce the current in the primary by a factor of say 100 when the secondary is short circuited and thus prevent magic smoke😊

nice project! try making a ZVS driver.

@TheKnurdLab

2 жыл бұрын

Coming up as the next video on my channel. Stay tuned.

If you were to immerse the flyback transformer & components in mineral oil, would you get a larger spark?

what kind of varistor is used in this video...(voltage?)

@TheKnurdLab

Жыл бұрын

If you are going to run from a battery then you can omit it. I was using it to prevent the high voltage getting back into the SMPS that I was using. Anything above 250v is fine I guess. It is just for a precaution. Even I don't see any use for it. But since I fried my lab power supply once, thought better safe than sorry.

Great video! Thorough and informative. Would you please explain the difference in time bases, top and bottom, in the signal graphs, such as at 3:08 when you display the capacitor and VBE voltages?

@TheKnurdLab

10 ай бұрын

Please look at the bottom left hand side of the graph. The legends with their respective colours are explained as to which axis represents what. Thank you for your kind words.

@grego1451

10 ай бұрын

Thank you for your quick reply! Understood, the vertical axes are well-labeled. For the horizontal, it's safe to assume then that both signals are on the same time base, 5 microseconds per division, and that the top axis is not in time at but in some other units of measure denoted by "m". @@TheKnurdLab

Well done on taking the time to trace the pin outs of the transformer. I have copied your circuit, and tomorrows project is to produce a working example. Clever way you used self resonance rather than trying to match a driver tuned to the transformer. Also, did you leave the internal tripler, focus & A1 controls in place, or did you bypass them as you circuit indicates? Thanks for sharing! Cheers Pete'.

@TheKnurdLab

2 жыл бұрын

I left them undisturbed. I cut out the extra wires though(mine had 3 wires out of which I cut and epoxied two) leaving behind only the HV output wire. Happy to know you found it useful. 👍

@Bristoll170

2 жыл бұрын

@@TheKnurdLab Thank you for the quick reply :-). Good to know I won't have to excavate my way into the side module. The other two wires you cut are for the focus, and the A1 supply for the picture tube, being fed from the two pot's. Cheers Pete' New Zealand.

It is so helpful video..I want to make a variable high-voltage power source can I use this by varying input voltage or changing the capacitor C1?? and can you please share with me the full info on c1 And MOV?

@TheKnurdLab

6 ай бұрын

MOV and C1 are just there to ground any high voltages that may find its way back to the source. I was experimenting and tend to make some silly mistakes. So didn't want that to damage my power supply. Later I learned from my mistake and just used C1 and MOV just in case. Not critical if you are using carefully.

@jahidhasan3310

6 ай бұрын

can i change c1 to change the output voltage?@@TheKnurdLab

Great vid, what software were you using to model the circuit?

@TheKnurdLab

Жыл бұрын

Electronics workbench by Multisim

Im new in electronic, so I appreciate the explanation details, is it possible to control this device to reach 20 kV and 9 kHz discharge ? I wanna use in experiment to generate Non thermal plasma in Dielectric barrier discharge

@TheKnurdLab

2 жыл бұрын

Yes, you may reduce the supply voltage and it reduces the output as well. You can also try to change the value of the capacitor. Please refer to the details I have spoken about it in the video itself. Note that I am running it from 24v DC to get such high voltages.

very good video whats your simulation source?

@TheKnurdLab

2 жыл бұрын

Thank you. I used NI Multisim for the simulation. You can also try PSIM. It is a good simulation software as well with lot of cool features.

👍

HI. Is it safe to touch the circuit when it is producing sparks? I am talking about both the high voltage ends and the general circuit

@TheKnurdLab

Жыл бұрын

NO. NOT AT ALL. High voltage can be fatal. Please don't try to replicate unless you know what you are doing. The voltage at the output exceeds many thousands of volts. DON'T TRY THIS AT HOME. IT WILL GIVE YOU A FATAL SHOCK.

❤️

Hello ! is it possible for you to tell me what software did you use for simulation, I am trying to look for alternatives to LTspice ? Thank you :)

is 1N4007 and UF4007 diodes are different?

@TheKnurdLab

Жыл бұрын

UF4007 is the high frequency version of IN4007. Basically it can handle faster switching speeds.

Do you get much smell of ozone ?

@TheKnurdLab

10 ай бұрын

Not when powered for a short duration. But when the arcs are made continuous, yes.

I'm use c2 = 0.47uf and i don't have c1 , my circuit no working any help

I am having trouble to identify pins on my flyback. my multimeter is slightly disaligned and shows 0.8ohm resistance at normal. what should i do?

@TheKnurdLab

Жыл бұрын

1:56 I have shown the pin numbers of the particular model of Flyback transformer I am using in the video. You may please refer that. If you have a different model, please try searching the part number and you may find the circuit diagram hopefully for your model.

@shantilkhadatkar1195

Жыл бұрын

@@TheKnurdLab that's the problem. The shopkeeper whom I purchased the transformer from said we don't give datasheets. Been a month since I have been searching for it. TF 0107 its name

@TheKnurdLab

Жыл бұрын

Could you type in the full series of numbers? Let me give it a try.

You know that zvs circuit is better and more efficient in such applications ... The explanation was very good though ....

@TheKnurdLab

2 жыл бұрын

Yes, infact I meant for this circuit to be a simple HV power source. But I wanted to understand it better and indepth. Thanks and I'm happy you found the explanation useful. I have explained the ZVS circuit as well. You may watch it if you are interested.

The output voltage is ac or dc?

@TheKnurdLab

7 ай бұрын

It is AC but the flyback transformer has a built in diode which rectifies the AC and makes it DC

so i have a flyback transformer whose no. is BSC24-01N4095I and below that is written as 2013 05 30 5-3, a 220 ohm and 22 ohm resistor, MJE3055T transistor i found this from another youtuber but i am not able to identify the primary and the secondary coil of the transformer in that video which i saw earlier they suggested to check the primary and secondary windings by checking the resistance of 2 pins where the resistance should be less than 1 ohm the pin which would have such resistance would be primary coil and the other pins which may have resistance slightly higher would be secondary coil. I tried to do this with my cheap multimetre but it didn't work plus i don't have enough knowledge to check the windings the way you did because i am just 15. i am really interested into plasma physics i also clicked some photos of my project which i saved it in a form of pdf is it possible to share you through gmail or twitter dm?

@TheKnurdLab

Жыл бұрын

Do a Google image search with the following keyword "bsc24-01n4095i pinout" (without the quotes ofcourse). You would get the pin number of your transformer model.

@vihaancubejunghare5614

Жыл бұрын

@@TheKnurdLab i tried searching it but then it isn't relevant and i am not able to understand which is the primary coil and which the the secondary one

@TheKnurdLab

Жыл бұрын

First things first. The flyback transformer is not something that is intended or manufactured for the purpose of the circuit or application discussed in the video. It is a standard part of a CRT monitor or television where it's duty is to produce high voltages to control the electron beam. It just so happens that we are repurposing it to make a high voltage generator. When you do a search as I told, the exact pin diagram of the model you mentioned comes up as the second search result with clear indication of its pins and the original circuit it was intended to be used in a CRT TV. From there it is just a matter of continuity test to determine the suitable coils. The secondary is easy to find out. So is the feedback coil and the primary. Please watch the video of mine where I have mentioned the diagram of the flyback I have used. As I said you would find the diagram of yours if you follow the method I just mentioned. Work safe. Try to understand the sceience behind it thoroughly before attempting anything dealing with high voltages. God bless.

@vihaancubejunghare5614

Жыл бұрын

@@TheKnurdLab ​ @The Knurd Lab but i am just 15 and i wasn't able to understand how to do the tests for inductance and for checking resistance my multimeter isn't capable of checking resistance under 1 ohm

@TheKnurdLab

Жыл бұрын

In that case I'm legally obliged to advise you to please understand and study the theory associated with it and please not to try the circuit yourself. If you have to do it, Please do it under the supervision of an adult or a trained engineer or certified person. I do not bear any responsibility for the losses that may arise out of your actions. Thank you.

What is the model of the flyback transformer u r using?

@TheKnurdLab

7 ай бұрын

I believe I have added that in the attachments. Links in description.

@kanchanmisra2979

7 ай бұрын

@@TheKnurdLab Bro i built it but there are no arcs and the resistors are heating. I'm supplying 12v dc

@TheKnurdLab

7 ай бұрын

@kanchanmisra2979 May be you have got the windings (pins) on the flyback transformer wrong. Please check the windings. Different models of transformers have different types of connections.

@kanchanmisra2979

7 ай бұрын

@@TheKnurdLab I'm using the same model u wrote on ur notebook i.e. bsc... 1010A I'm using pin 2 and 3 as primary and 7 and 8 as feedback. I'm using 2W 220ohm and 20ohm resistors. Ps can u give me ur whatsApp no. I have to making this as school project pls pls pls pls pls 🙏🙏🙏 Ps2 I'm a boy

@TheKnurdLab

7 ай бұрын

Please check if you have wired the transistors properly. Emitter, Base and Collectors. Refer to the datasheet of the transistor and find out the pins. If they are wired right, then check if the transistor is working. You can do a basic transistor test with a multimeter. Google it. If you don't know electronics or electrical basics, then I would advise not to proceed. The voltages involved are dangerous. It can be fatal. Follow the safety protocols or work under the guidance of a trained professional. I would advise not to proceed if you don't know what you are doing.

U did not used every component when I compared with ur ckt diagram pls clarify me

@TheKnurdLab

Жыл бұрын

Could you please be specific. Which component?

@Tech-help4903

Жыл бұрын

@@TheKnurdLab diode d2 and capacitor c1 ,,, should we use. Sry.... Bro, but i am really confused 😟 May be bcs lack of knowledge.

@TheKnurdLab

Жыл бұрын

Yes, I've used them. May be it isn't visible because I soldered them on the PCB near to the transistor. That is important components which I've talked about in the video also.

How perching

@TheKnurdLab

Жыл бұрын

Sorry. I didn't get you...

Bro input 10k v diagram

@TheKnurdLab

2 жыл бұрын

You may try increasing the capacitor C1 value. As you increase the capacitance, the frequency decreases and so does the output voltage. The Circuit remains the same.

@nagarajar3389

2 жыл бұрын

@@TheKnurdLab thanks bro I will try thanks

Dude can you please help me

@TheKnurdLab

Жыл бұрын

You may please ask your question in comments section.

@vihaancubejunghare5614

Жыл бұрын

@@TheKnurdLab i asked

i tried to make it for some reason it is not working is it possible if you can share or gmail so that i can further explain my problem there

@vihaancubejunghare5614

Жыл бұрын

Can u please help me if possible

@vihaancubejunghare5614

Жыл бұрын

I am 15 but still very interested in plasma physics

Complete kit required please address phone number details